Paper winding machine



April 8, 1941, G. M. KWKTEK YAPER WINDING MACHINE Filed Jan. 25, 1940 5 Sheets-Sheet l Httmrnegs April 1941- e. M. KWITEK 2.237.759

PAPER WINDING MACHINE Filed Jan. 25, 1940 K 5 Sheets-Sheet 2 A ril 8, 1941. G. M. KWITEK IAPER WINDING MACHINE Filed Jan. 25. 1940 5 Sheets-Sheet 3 Invent]: 1'" ELM.KW1LEK Flt-[3cm 1152515 April 8, 1941. G wrr 2,237,759

PAPER WINDING mcnxim Filed Jan. 25, 1940 5 Sheets-Sheets Fl "EL-tun PHEHE Patented Apr. 8, 1941 2,237,759 PAPER. WINDING MACHINE George M. Kwitelr, Green Bay, Wia, assignor of one-half to Edwin M. Kwitek and one-fourth to Reuben J. Pech, both of Green Bay, Wis.

Application January 25, 1940, Serial No. 315,490

16 Claims.

This invention appertains to paper converting machinery, and more particularly to a novel continuous wind machine for re-winding' a paper web from a parent roll onto suitable. coresgfor use by the trade.

It is customary, as shown in the Letters Patent to Straubel No. 1,452,228; issued April 17, 1923, and Schueler No. 2,029,446, issued February 4.

-' 1936, to feed a web of paper oil a parent or mill roll of paper and to slit and perforate the web and to re-wind the web onto cardboard or othe cores or hubs incident to the making of rolls of paper towels, rolls of toilet paper, etc.

Such machines include a slowly rotating turret or spider carrying a plurality of freely rotatable mandrils for the cores or hubs, with means for rotating a certain mandril rapidly as the same reaches a predetermined position for receiving and winding the paper web thereon. "Upon the filling of the cores with the paper the rotatable turret or spider carries the filled cores, out of operative position and brings a new un tilled core on a new mandril into operative posicores can be qulckly'removed from the machine and the unfilled cores placed on the machine and brought into proper position for receiving the paper web.

Another salient object of my invention is the provision of novel means carried directly by the bed roll for cutting the slit and perforated web, whereby to eliminate all exteriorknives and to insure the carrying of the end of the web away from the bed roll, whereby the end of the paper web on the filled cores will not adhere or stick to the bed roll.

A further important object of my invention is the provision of means for automatically oper-' ating the bed roll carried knives so that the slit and perforated web will be severed at the desired and proper time.

A still further object of my invention is the proper position, so that the mandril carryingsuch cores will be brought quickly into engagement with the web and bed roll with'a striking action, whereby to insure the proper sticking of the severed web end to the cores.

With these and other objects in view, the invention consists in the novel construction, arrangement, and formation of parts, as will be hereinaf er more specifically described, claimed, and illustrated in the accompanying drawings, in which drawings:

Figure 1 is a diagrammatic view illustratingthe severing knives incorporated with the bed roll and showing the position of the various rolls and the mandril turret relative to one another Figure 2 is a side elevational view of my improved paper re-winding machine.

Figure 3 is a view similar to Figure 2, but looking in the opposite direction, parts of this view being 'shown broken away and in section to illustrate structural details.

Figure 4 is a fragmentary, top, plan view of the improved machine, illustrating the righthand side thereof.

Figure 5 is a fragmentary, top, plan view of the machine, showing the lefthand side thereof.

Figure 6 is an enlarged, fragmentary, detail, sectional view illustrating a part of the release mechanism for the paper web severing knife.

Figure 7 is an enlarged, detail, fragmentary, perspective view showing one end of the paper web-severing knife.

Figure 8 is a diagrammatic view illustrating a slightly modified form of my invention and showing a suction means for holding the slit and perforated web onto the bed roll.

Referring to the drawings in detail, wherein similar reference characters designate corresponding parts throughout the several views, the letter M generally indicates my paper re-winding machine, and the same includes a frame Ill having spaced parallel side pieces II and I2, which can be connected together and. braced in any desired manner. The front of the machine carries suitable bearings l3 rigidly connected with the side pieces ii and I2 for rotatably supporting the shaft i4 carrying the parent or mill roll of paper l5.

The paper web I6 is drawn off the parent roll by means of a pull or feed roll l1, and the paper web is trained over the feed roll and under and around the bed roll. i8. The feed roll i1 is mounted upon a feed roll shaft l9, while the bed roll i 8 is mounted upon a bed roll shaft 20'. These shafts l9 and 20 are journaled in suitable bearings carried by the side frame pieces II and I2. One end of the bed roll shaft 20 has keyed or otherwise secured thereto a relatively large gear wheel 2|, and secured to the feed roll shaft I9 is a pinion 22, which meshes with the gear II.

The bed roll i8 is provided at equidistantly spaced points with longitudinally extending slots .23 for the perforating blades 24. The bed roll is further provided with a plurality of annular, equidistantly spaced grooves 25 for the reception of the paper web slitting knives 26. The perforating knives 24 are rigidly secured to a perforating roll 21, while the slitting knives 26 are rigidly carried by a slitting roll 28. These rolls are mounted, respectively, on shafts 29 and 3|],

which are, in turn", journaled in the side frame plates H and I2. The perforating roll 2? is driven in proper timed relation to the bed roll i8 by a pinion 3| keyed or otherwise secured to the perforating roll shaft 29, which meshes in turn, .has keyed thereto a drive pinion 4U,'

which meshes with and drives the bed roll ear The shaft 39 hasfurther secured thereto a drive pulley wheel 4|, around which is trained a pulley belt 42, which drives a pulley wheel 43 keyed or otherwise secured to the drive shaft 44 of the driving mechanism for rapidly rotating one of the mandrils 45 carried by the rotatable mandril turret 46.

The rotatable'mandril turret 46 includes end spiders 41 rigidly secured to a shaft 48 arranged in spaced parallel relation to the bed roll I8.

The arms of the spider 4'I carry sockets or chucks 49 for detachably receiving the mandrils 45. The chucks and sockets are rotatably mounted on the end spiders, and the same carry drive pulley wheels 50.

The shaft 48 for the spiders is also rotatably mounted, so as to permit the turning of the spiders, as heretofore intimated, and, as illustrated, the ends of the shaft '48 are rotatably received in, bearings carried by the upper ends of bellicrank-shaped arms or levers These bell crank levers 5| are rockably mounted at their angle on stub shafts 52, and contractile coil springs 53 are connected to the lower ends of the bell crank levers and the side pieces ll of the frame of the machine. Thus, the springs 53 normally tend to rock the bell crank levers 5| and move the entire spindle or mandril turret toward the bed roll l8. 7

Means is provided for slowly rotating the mandril turret so that the proper mandril will be brought into operative position relative to the bed roll during the rapid rotation of the desired mandril. The means for slowly rotating the mandril turret consists of a relatively large gear wheel 54, which is driven through a train of gearing and other devices from the shaft 29 of the bed roll l8. This shaft 20 has keyed or otherwise secured thereto a sprocket wheel 55 around which is trained a sprocket chain 56. This sprocket chain 55 drives a sprocket wheel 5'! keyed or otherwise secured to a countersh'aft 58.

The co'untershaft 58 has rigidly secured thereto a worm* 59, which drives a worm wheel 69. The worm wheel 53 is of a relatively large diameter and is keyed or otherwise fastened to a shaft 9| arranged at right angles to the shaft 29 of the bed roll. The shaft 6| in turn, drives through the medium of intermeshing beveled gears 62 and 63 a stub shaft 54, and the stub shaft 64 drives a similar stub shaft 65 through intermeshing spur gears 65 and W. A sprocket chain 68 operatively connects the shaft 65 with an upper stub shaft 69, and the sprocket chain 68 is trained over sprocket wheels 19 secured to said shafts. The shaft 69 is operatively connected to a spaced stub shaft H for driving the same through the medium of intermeshing spur gears i2 and 33. The spur gear 13. is connected with the large gear 54 and turns the same. The

various drive appliances described constitute a speed reduction mechanism, so as to bring about the slow turning of the mandril turret.

While I have described and illustrated a certain drive mechanism for operating the turret, it is to be understood that equivalent mechanism can be substituted therefor. At this time it is also to be noted that the stub shaft'll has keyed or otherwise secured thereto a wiper cam 14, the purpose of which will be later set forth.

As heretofore intimated, certain of the mandrils are rapidly rotated as the same slowly move into operative position relative to the bed roll l8, and the means for.rapidly rotating the desired mandrils includes the pulley wheels 59 heretofore mentioned. Rigidly secured to the top drive shaft 44 in spaced, relation to the drive pulley wheel 43 is a relatively large drive pulley wheel 15, and this pulley! wheel has trained thereabout a drive pulley belt Hi. The pulley belt 76 also extends over spaced idle pulley wheels H and 18. A belt tightener or slack take-up pulley 19 also engages the belt and is normally urged inwardly toward the belt by contractile coil springs 80. It is understood that I tical plane and are adapted to -be moved into driving contact with one run of the drive belt F6 in succession during the rotation of the mandril spider. As shown in Figure 2, two of the pulleys 50 are in driving contact with the belt 16, and, thus, these two mandrils are being rapidly rotated. The topmost mandril being rotated is provided with the filled cores, while the lowermost mandril being rotated is provided with the empty cores or hubs for the reception of the paper web, and the paper web between the driven mandrils'is ready to be severed. The other two mandrils of the turret are idle, and, hence, these mandrils can be removed to permit the expeditious placing of empty cores in place and the removal of the filled cores.

' The means for severing the web forms one of the salient and important features of my invention, and this means will now be described in detail.

' The bed roll l8 has formed therein at diametbrought into play and beyond the bed roll when.

the web is to be severed.

The arms 84 on one side of the bed roll have connected thereto contractile coil springs 35, which normally tend to urge the knives outwardly, The arms 84 on the opposite side of the bed I adhesive.

roll i carry rollers 01, .and these rollers ride on I the periphery of a timing wheel 08. This wheel around the periphery thereof during rotation of the bed roll. Due to the engagement of the rollers 0i with the timing wheel 80, swinging movement of the knives is prevented under the influence of the springs 86. The periphery of the timing wheel 08 at'one point is cut away, as at 09, and, obviously, when a roller 01 rides into the cut-away portion 80 of the timing wheel, the knives are free to spring outwardly to sever the web.

Normally, the cut-out portion of the cavity... of the timing wheel 08 is filled by a head 90, and, hence, when the head 90 is in the cavity or cutout portion 09, the rollers 81 are prevented from springing into said cavity. The head 00 is movable parallel with the shaft 20, but at right angles to the timing wheel 00, and, hence, the head is movable into and out of the cavity. One end of the head 90 has formed thereon a shoe SI, and the other end of the head has formed thereon the wear plate 92 into which the rollers 01 are adapted to ride when the head 90 rides out of the cavity 09. The head 90 is secured to a slide shank 90 carried by the bed roll shaft 20, and the shank is normally urged by a spring 94 toward the timing wheel 88, so that when the shank has free unrestricted movement, the head will move beyond the timing wheel and permit the wear plate 92 to take its place.

The slide shank 93 is provided at a point intermediate its ends with a reduced portion 95 de-' fining shoulders, which are adapted. to be ,engaged by a releasable trigger yoke 06. This trigger yoke 96 is normally urged toward the-shaft 83 by an expansion coil spring 91. and, hence; the shank 93 is normally held against movement with the head 90 in the cavity 89 of the timing wheel.

The trigger has formed thereon the core 08 of an electric solenoid 99, and the coil of the solenoid has its opposite terminals connected to wires I00 and IOI. At the present moment, it is to be noted that upon the energizing, of the solenoid the trigger yoke will be drawn away from the shank 93, allowingmovement of the head 90 under the influence of its spring 94. In order to; reset the head 90 and the, shank 93 after the release thereofby the trigger yoke 96, a re-set cam BI' is carried by the bed roll I8. As the re-set cam 9i rides past the cam shoe SI the inclined surfaces of the re-set shoe 9| and cam 9| will force the head 90 back to its normal position. At this time, the trigger yoke 96 can move into engagement with the shoulders of the groove 95 to hold the head 90 and the shank 93 against movement.

As the web is severed by a knife 83, the knife moving outwardly beyond the bed roll I0 carries the free end of the severed web away from the roll, and, hence, all danger of the freshly severed and adhering to the bed roll by static electricity is eliminated.

It is also important to provide means for insuring the proper connection of the end of the web with the new unfilled cores which 'are being brought into active position at this time.

The means for insuring the proper connection of the new unfilled cores with the end of the web passing under the bed roll forms another salient feature of my invention, and this means includes a glue pot or reservoir I04 for receiving a suitable Rotatably mounted in the reservoir or pot is an adhesive roll I05, which is partly im- (ill rotation of the mandril tu ret.

mersed in theadhesive in the reservoir or pot. As the mandrils carrying the unfilled cores move past the glue not or reservoir, the cores frictionally contact the glue roll I05, and, hence, the glue roll coats the outer surface of the cores with a desired amount of adhesive.

As the mahdrils with the new unfilled adhesive-coated cores approach the bed roll, the same are held awayfrom the periphery of the bed roll until the desired time by the use of releasable arms I00. ..These arms are rockabiy mounted intermediatextheii' ends on pivot pins I01, and

the upper ends of the arms carry yokes' I08, which is forced outwardly so 'as to allow the quick and rapid movement of the mandril carrying the unfilled cores'into engagement with the bed roll I0 and the end of the paper web carried thereby. This is a snap trigger action and is brought about by the springs 53 of the mandril turret. 5 Obviously, it is necessary that the knives 03 and the swinging levers I06 be actuated in proper timed relation relative to uni: another and to the Timing means of various characters can be utilized, and I make use of the timing or wiper cam I4 mounted upon the shaft II for actuating an electrically controlled timing switch II3.

The timing switch III includes normally spaced contact points electrically connected with electric wires H4 and IIS. The wire Ill leads to one terminal of any suitable source of electrical energy. such as a battery 6, and the other terminal of the battery has electrically connected thereto a wire 1. --The wires II! and III lead to and are electrically connected with the terminals of the solenoid I I2, and these wires also have electrically bonnected therewith the wires I00 and IOI oi' the electric solenoid 80.

From the construction so far, it can be seen that when-she turret reaches a predeterminedposition, the. switchiii will be actuated by the timing wiper cam 14, and the closing of the switch willsenergize the solenoids 09 and H2. The energizing of these solenoids will bring about the actuation of one of the cutting knives 83 for severing the web and the forward movement of the mandril carrying the unfilled cores into engagement with the end of the web carried by the bed roll.

While I have shown and described electrical mechanism for controlling the actuation of the knives 03 and the mandrii for the unfilled cores, it is to be understood that mechanical means can be substituted therefor, and it is contemplated by me.

From the foregoing description it can be seen that I have provided an exceptionally simple and durable means for severing the paper web i'rom the interior of the bed roll, so that thecutting knives will carry the severed end away from the bed roll, and that I have also provided means for carrying the mandril with the unfilled cores into snap engagement with the end 01. the web on the bed roll upon the severing of the web, so that the end of the web carried by the bed roll can be quickly wound upon the unfilled cores.

' parting from the spirit or the scope of In Figure 8, I have shown a slightly modified form of my invention, and means is illustrated diagrammatically for holding the web onto a bed roll by suction means. In Fig. 8, the bed roll is illustrated by the reference character I20, and the same can be of a hollow natureand is divided interiorly by partitions I2 I. The partitions III, in conjunction with a part of the periphery of the roll, define a suction .chamber m. This suction chamber communicates through a suitable stumng box with a suction pipe I23. The periphery of the roll l2lat spaced points has formed therein annular grooves in which ride stripper.

knives I25 for carrying the severed web from the bed roll to permit the severed end to be attached to unfilled cores being brought into position by In this form of my invention, the paper web is trained over the top of the bed roll I" past the perforating roll 12! and'the slitting roll I30. When the-knife I21 is actuated, the vacuum or the rotatable mandril turret [28. The periphery suction can be shut off in the roll, so as to allow the release of the paper web and the finishing of mentioned. The suction can now also be cut of!" at this time, sons to facilitate the free movement of the web of! the bed roll.

Changes in details may be made without demy invention, but what I claim as new is:

1. In combination, a web feeder, a rotatable turret, mandrils rotatably mounted on the turret and adapted in revolution thereon to approach suoce'mlvely the path of the web, a bed roll over which the web travels, and a cutter carried directly by the bed roll for severing the web, when the mandril reaches a predetermined position relative to the bed roll and web.

2. In combination, a web feeder, a bed roll over which the web passes, a mandril movable toward and away from the web, and an automatically operated cutting knife carried by and rotatable with the bed roll and movable outwardly beyond the periphery of the bed roll for severing the web at a predetermined time.

3. In combination, a web feeder, a bed roll over which the web passes, a mandrll movable toward and away from-the bed roll having cores for receiving the web, a knife for severing the web car- 7 ried directly by the bed roll, spring means normally urging the knife beyond the periphery of the bed roll in web-severing position, and means for preventing movement of the knife against the tension of said spring means and within the periphery of said bed roll until a stated time.-

4. In combination, a web feeder, a bed roll over which the web passes, a. mandril movable towardand away from the bed roll having cores for receiving the web, a knife for severing the web carried directly by the bed roll, spring means.

stated time, said means including a roller operatively associated with the knife, a timing wheel forthe roller, and means for rendering the timing wheel operative at desired intervals.

5. In combination, a web feeder, a bed roll over which the web travels, a turret, means for slowly rotating the turret relative to the bed roll, mandrils rotatably mounted on the turret and adapted in revolution thereon to approach successively the path of the web, a cutter carried by the bed operating the" head at predetermined intervals relative to the rotation of the turret and bed roll.

6. In combination, a web feeder, a bed roll over which the web travels, a. turret, means for slowly rotating the turret relative to'the bed roll, mandrils rotatably mounted on the turret and adapted in revolution thereon to approachsuccessively the path of the web, a cutter carried by the bed roll for severing the web, rockable levers mounted intermediate their ends for swinging movement carrying the cutter, spring means connected with levers normally urging the cutter to websevering position, a timing wheel, a roller on one of the levers engaging the periphery of the timing wheel for normally holding the cutter in an inactive position against the tension of said spring means, a head forming a part of the periphery oi the timing wheel movable into and out of operative position relative to the timing wheel and roller, and means for automatically operating the head at predetermined intervals relative to the rotation of the turret and bed roll, said means including a. shank having shoulders connected to the head, spring means normally urging the shank and head in one direction, a trigger 'yoke normally urged intoengagement with the shouled in revolution thereon to approach successively the path of the web, a bed roll over which the webpasses, means for rotating the bed roll, speed-reducing mechanism for rotating the turret from the bed roll, a drive belt operated from the bed roll, pulleys on the mandrils adapted to be brought into and out of driving contact with the belt, as the same approach and leave the path of the web, automatic means for severing the web adjacent the mandrils, and automatic releasable means for holding back an unfilled mandril from the path of the web and the bed roll until a predetermined time of release.

8. In combination, a web feeder, a bed roll over which the web travels, a turret, mandrils rotatably mounted on the turret and adapted to revolution thereon to approach successively the path. of the web and bed roll, means for driving .the bed roll, speed-reduction mechanism for slowly of the web and the bed roll, and automatic means for releasing the mandril-holding means in proper timed relation relative to the turret and the" bed roll.

9. In combination, a Web feeder, a bed roll over which the web travels, a turret, a plurality of mandrils rotatably mounted on the turret and adapted in revolution thereon to approach successively the path of the web and the bed roll, bell crank levers rockably mounted intermediate their ends rotatably supporting the turret, means for rotating the bed .roll, speed-reducing mechanism for rotating the turret from the bed roll, a web cutter, means for holding an unfilled mandril away from the patli of the Web and the bed roll, and means actuated in proper timed relation relative to the bed roll and the turret for actuating the cutter and the mandril-holding means to release said unfilled mandril, whereby the same can approach the path of the web.

iii. In combination, a web feeder, a bed roll over which the web travels, a turret, rockable levers rotatably supporting the turret, means normally urging the levers and turret toward the path of the web and bed roll, means for rotating the bed roll, speed-reducing mechanism for rotating the turret slowly from the bed roll, means for rapidly rotating certain of the mandrils as they approach the path of the web and the bed roll, a cutter for severing the web, means for operating the cutter including a solenoid,

means for preventing movement of an unfilled mandril toward the bed roll including a solenoid, a switch for controlling the operation of the solenoids, and a wiper cam rotatable in proper timed relation from the turret operating mechanism for actuating the switch.

11. In combination, a web feeder, a bed roll over which the web travels, a perforator roll and a slitting roll for the web arranged in operative relation relative to the bed roll, a turret, means for slowly rotating the turret from the bed roll,

a plurality of mandrils rotatably mounted on the turret and adapted in revolution thereon to approach successively the path of the web, and means carried directly by the bed roll for severing the web passing over the bed roll between certain of the mandrils, whereby to permit the transferring of the web from the bed roll from one mentioned mandril t0 the other.

, 12. In combination, a web feeder, a bed roll, means for rotating the bed roll, a perforating roll and a slitting roll for the web arranged in operative relation to the bed roll, a turret, means for slowly rotating the turret from the bed roll, mandrils rotatably mounted on the turret and adapted in revolution thereon to approach successively the path of the web and bed roll, means for rotating a pair of the mandrils rapidly when the same are in predetermined relation relative rotating mandril to the other, rapidly rotating mandril, at the moment of the transfer one of said mandrils being wound with the web and the other being empty to receive the web.

13. In combination, a web feeder, a bed roll, means for rotating the-bed roll, a perforating roll and a slitting roll for the web arranged in pe ve elati n to the bed roll, a turret, means for slowly rotating the turret from the bed roll, mandrils rotatably mounted on the turret and adapted in revolution thereon to approach successively the path of the web and bed roll, means for rotating apair of the mandrils rapidly when the same are in predetermined relation relative to the bed roll, means for severing the web on the bed r011 between said mandrils, whereby to' effect a transfer of the web from one rapidly rotating mandril to the other rapidly rotating mandril, at the moment of the transfer one of said mandrils being wound with the web and the other being empty to receive the web, means for applying an adhesive to the unfilled mandril, and automatically operated releasable means for holding the unfilled mandril away from the bed roll and the path of the web until the web has been severed.

14. In combination, a web feeder, a bed roll, means for rotating the bed roll, a perforating roll and a slitting roll for the web arrangedin operative relation to the bed roll, a turret, means for slowly rotating the turret from the bed roll, mandrils rotatably mounted on the turret and adapted in revolution thereon to approach successively the path of the web and bed roll, means for rotating a pair of the mandrils rapidly when the same are in predetermined relation relative to the bed roll, means for severing the web on the bed roll between said mandrils, whereby to effect a transfer of the web from one rapidly rotating mandril to the other rapidly rotating mandril, at the moment of the transfer one of said mandrils being wound with the web and the other being empty to receive the web, means for applying an adhesive to the unfilled mandril, and automatically operated releasable means for holding the unfilled mandril away from the bed roll and the path of the web until the web has been severed, the means for severing the web including a cutter carried directly by the bed roll and movable beyond the periphery of the bed roll for carrying the severed web away from the bed roll.

' 15. In a paper re-winding machine, a bed roll over which the paper web passes, a web slitter and perforat'or for the web operating in conjunction with the bed roll, a turret, rotatable mandrils on the turret, means normally urging-the turret toward the bed roll, cutter means for severing the web, and suction means for holding the web to the bed roll at certain times.

16. In a paper re-winding machine, a bed roll overwhich the paper web passes, a web slitter and perforator for the web operating in conjunction with the .bed roll, a turret, rotatable mandrils on the turret, means normally urging the turret toward the bed roll, cutter means for severing the web, and suction means for holding the web to the bed roll at certain times, said suction means including a chamber in said roll,

and a suction pipe communicating with the chamber, said roll having suction openings communicating with the chamber.

GEORGE M. KWITEK. 

